Networks

Featured Articles

How to add a custom network RPC

Learn how to add and edit custom networks and RPC URLs.

How to use MetaMask on Solana

Learn how to use MetaMask on Solana, Bitcoin, and other non-Ethereum networks.

Guides

Add a network using Chainlist

Learn how to add a network to MetaMask using Chainlist.

How to connect to Linea on MetaMask

Find Linea in MetaMask's drop-down menu!

How to remove networks

All networks (outside of preloaded networks) can be removed from MetaMask.

How to view testnets in MetaMask

Devs, view testnets from the network selector and configure in settings.

Help

Custom networks missing after reinstalling or restoring from Secret Recovery Phrase

When you reinstall MetaMask, custom networks need to be re-added. This is because MetaMask essentially considers your wallet to be a completely new instance of the app, and will not retain any of the data that was previously stored locally — custom networks being one example.

Error 'Internal JSON-RPC error' when trying to interact with other networks

If you are interacting with sidechains or custom networks, we highly recommend you read our user guide here.

Error: Invalid or missing bridge url parameter value

Troubleshoot by resetting your account.

Error 'No chain ID defined'

Troubleshoot by toggling networks.

Learn

Using a local node

Once you have your own node up and running, you can connect MetaMask to it.

Verifying custom network information

MetaMask does not verify custom networks. You need to review and approve the request.

Why Infura cannot serve certain areas

Infura is unavailable to persons in certain jurisdictions due to U.S. sanctions.